The Secret of the Selenites is a 1984 French animated comedy film directed by Jean Image, his last film before he died 5 years later. It is also known as Moon Madness in the United States and Moontrek in the United Kingdom.

Plot

In the year 1787, the astrologer Sirius seeks proof of the existence of the Selenites, a fabled race of Moon dwellers said to possess the talisman of eternal life. He offers his entire fortune to his cousin, the Baron Munchausen, if the Baron journeys to the Moon and retrieves the talisman. Accompanying the Baron on this adventure are his friends Nimrod, who can see great distances; Earfull, whose huge ears grant him superhuman hearing; Hurricane, who can exhale great gusts of wind; the fleet-footed Cavallo; and Hercules, who is as strong as his namesake. They board a tall-masted ship, the Clair de Lune, and deliberately sail into a fierce storm. By inflating a trio of hot air balloons and riding a waterspout high into the air, the ship takes flight and leaves Earth.